void setup() {
  // put your setup code here, to run once:

pinMode(3, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
digitalWrite(3, LOW);
digitalWrite(5, LOW);
digitalWrite(6, LOW);
}

void loop() {
  // put your main code here, to run repeatedly:
int b = analogRead(A0);
int a = map(b,0,1023,0,1000);

//digitalWrite(D6, HIGH);
digitalWrite(3, HIGH);
delay(a);
digitalWrite(3, LOW);
digitalWrite(5, HIGH);
delay(a);
digitalWrite(5, LOW);
digitalWrite(6, HIGH);
delay(a);
digitalWrite(6, LOW);


}